Al3158, New prod uc t typical performance characteristics – Diodes AL3158 User Manual

Page 4

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AL3158

HIGH EFFICIENCY 1x/2x CHARGE PUMP

FOR WHITE LED APPLICATIONS

AL3158

Document number: DS35047 Rev. 2 - 2

4 of 10

www.diodes.com

January 2011

© Diodes Incorporated

NEW PROD

UC

T

Typical Performance Characteristics

Turn-On to 1x Mode

50us/div

Turn-On to 2x Mode

100us/div

Turn-Off from 1x Mode

200ms/div

Turn-Off from 2x Mode

200ms/div

Load Characteristics in 2x Mode

1us/div

PWM Dimming Control (Duty Cycle=50%)

10us/div





Vout
2V/div

EN1,2,3
2V/div

V

IN

=4.2V

T

A

=25°C

I

L

=20mA

Iin
200mA/div

Cp
2V/div

Vout
2V/div

EN1,2,3
2V/div

Iin
200mA/div

Cp
2V/div

V

IN

=3.0V

T

A

=25°C

I

L

=20mA

Cp
2V/div

Vout
2V/div

EN1,2,3
2V/div

Iin
200mA/div

Cp
2V/div

V

IN

=3.0V

T

A

=25°C

I

L

=20mA

Iin
200mA/div

V

IN

=4.2V

T

A

=25°C

I

L

=20mA

EN1,2,3
2V/div

Vout
2V/div

V

IN

=3.0V

T

A

=25°C

I

L

=20mA

Vin
200mV

AC

/div

Vout
200mV

AC

/div

Iin
100mA

AC

/div

Iin
100mA/div

V

IN

=3.6V

Freq=20kHz
Duty Cycle=50%

T

A

=25°C

EN
3.6V/div

Idx
50mA/div

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